CN208947105U - A kind of range extender of electric vehicle - Google Patents
A kind of range extender of electric vehicle Download PDFInfo
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- CN208947105U CN208947105U CN201821735774.9U CN201821735774U CN208947105U CN 208947105 U CN208947105 U CN 208947105U CN 201821735774 U CN201821735774 U CN 201821735774U CN 208947105 U CN208947105 U CN 208947105U
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- permanent magnet
- axial flux
- flux permanent
- magnet motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Abstract
The utility model discloses a kind of range extender of electric vehicle.The range extender of electric vehicle includes: prime mover, without yoke axial flux permanent magnet motor and electric machine controller；The crankshaft of prime mover is fixedly connected with the rotor of no yoke axial flux permanent magnet motor, is rotated for driving without yoke axial flux permanent magnet rotor；Rotor magnetic pole and stator winding without yoke axial flux permanent magnet motor are in axially opposing setting, and rotor magnetic pole and stator winding relative rotary motion are so that without yoke axial flux permanent magnet electric power generation；Electric machine controller is electrically connected with no yoke axial flux permanent magnet motor, on-vehicle battery and driving motor respectively, is powered for controlling without yoke axial flux permanent magnet motor to charging on-vehicle battery, and/or to driving motor.The utility model provides a kind of range extender of electric vehicle, to further decrease the weight and volume of existing range extender of electric vehicle, improves the complete vehicle weight and space layout of electric car.
Description
Technical field
The utility model relates to electric vehicle engineering field more particularly to a kind of range extender of electric vehicle.
Background technique
Great attention with country to automotive energy-saving emission-reducing, electric car obtain national ring with its zero-emission and low energy consumption
Guarantor department widelys popularize.Electric car is internally provided with on-vehicle battery, to make its rotation to drive vapour to driving motor power supply
Vehicle traveling；Vehicle-loaded battery electricity quantity is limited, course continuation mileage is short, needs to charge by extraneous power supply, use is extremely inconvenient.In electricity
Setting distance increasing unit is as loaded power in electrical automobile, it is possible to reduce the charging times of on-vehicle battery expand the continuation of the journey of electric car
Mileage.
In the prior art, range extender of electric vehicle includes prime mover and starting power generation all-in-one machine (integrated
Starter&Generator, ISG).Prime mover can be for using fuel such as gasoline, diesel oil, methanol, ethyl alcohol, natural gases as the energy
Internal combustion engine, for dragging starting power generation all-in-one machine rotation power generation.Start power generation all-in-one machine and is used for the band when prime mover revolving speed is zero
Dynamic prime mover starting, and generate electricity under the dragging of prime mover after prime mover starting.
Start power generation all-in-one machine in range extender of electric vehicle at present and generally use inner rotor core, rotor and stator are arranged
In radial relative position, stator has yoke portion and stator surrounds rotor, leads to current starting power generation all-in-one machine complete machine
Volume is larger, and weight is bigger than normal, and then influences the vehicle performance space layout of electric car.
Utility model content
The utility model embodiment provides a kind of range extender of electric vehicle, to solve existing range extender of electric vehicle weight
It is excessive with volume, the problem of influencing the performance and arrangement of electric car.
The utility model embodiment provides a kind of range extender of electric vehicle, comprising:
Prime mover, without yoke axial flux permanent magnet motor and electric machine controller；
The crankshaft of described prime mover is fixedly connected with the rotor of the no yoke axial flux permanent magnet motor, described for driving
No yoke axial flux permanent magnet rotor rotation；
The rotor magnetic pole and stator winding of the no yoke axial flux permanent magnet motor are in axially opposing setting, the rotor magnetic
Pole and the stator winding relative rotary motion are so that the no yoke axial flux permanent magnet electric power generation；
The electric machine controller is electrically connected with the no yoke axial flux permanent magnet motor, on-vehicle battery and driving motor respectively
It connects, powers for controlling the no yoke axial flux permanent magnet motor to the charging on-vehicle battery, and/or to driving motor.
Optionally, the electric machine controller includes the first control panel；First control panel has starting state and power generation
Two working conditions of state；The starting state of first control panel is in for controlling the no yoke axial flux permanent magnet motor
Motoring condition；The generating state of first control panel is in power generation shape for controlling the no yoke axial flux permanent magnet motor
State.
Optionally, the no yoke axial flux permanent magnet motor is disc type electric machine.
Optionally, the no yoke axial flux permanent magnet motor includes the first end cover and second end of axially opposed setting
Lid；The first end cover side opposite with the second end cover is fixed with an at least phase stator winding, the second end cover with
The opposite side of the first end cover is correspondingly arranged on rotor magnetic pole.
Optionally, every phase stator winding includes at least two winding branches；The no yoke axial flux permanent magnet motor is also wrapped
At least one switching device is included, at least one described switching device is set to side of the first end cover far from second end cover；
At least one described switching device is perforated and at least two winding branches electricity by least one in the first end cover
Connection, for realizing the serial or parallel connection of at least two winding branches by open and close.
Optionally, the electric machine controller further includes the second control panel；Second control panel with it is described at least one open
Device electrical connection is closed, for controlling the open and close of at least one switching device.
Optionally, every phase stator winding includes two winding branches: the first winding branch and the second winding branch；The nothing
Yoke axial flux permanent magnet motor includes three switching devices: first switch device, second switch device and third switching device；Institute
The first end for stating the first winding branch is electrically connected with the first end of the first switch device, and second end is opened with described second respectively
Close the first end of device and the first end electrical connection of third switch；The first end of the second winding branch respectively with it is described
The second end of first switch device and the electrical connection of the second end of the third switching device, second end and the second switch device
Second end electrical connection.
Optionally, the switching device is threephase switch device or single-phase switch device.
Optionally, the threephase switch device be three-phase ac contactor, three-phase solid relay or three-phase dc after
Electric appliance；The single-phase switch device is single-phase DC relay, single-phase solid relay or insulated gate bipolar transistor.
In the utility model, range extender of electric vehicle will be without yoke axial flux permanent magnet motor as electrical power generators, and original is dynamic
The power output end of machine crankshaft drives the rotor rotation without yoke axial flux permanent magnet motor, so that without yoke axial flux permanent magnet motor
Rotor magnetic pole and stator winding relative rotary motion, no yoke axial flux permanent magnet electric power generation；And in the control of electric machine controller
Under system, no yoke axial flux permanent magnet motor is powered to charging on-vehicle battery and/or directly to driving motor, to increase electronic vapour
The electric energy reserves of vehicle, increase the cruise duration of electric car.No yoke axial flux permanent magnet motor increases journey relative to existing electric car
The common radial flux motors of device, the volume without yoke axial flux permanent magnet motor than radial flux motors of equal-wattage grade or
Weight reduces half or more, and for range extender of electric vehicle, significantly reduced weight and volume is to vehicle lightweight
Significant, the arrangement of electric car is convenient in the space that range extender of electric vehicle is saved.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of range extender of electric vehicle provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of a kind of stator winding and rotor magnetic pole provided by the embodiment of the utility model；
Fig. 3 is a kind of structural schematic diagram of no yoke axial flux permanent magnet motor provided by the embodiment of the utility model；
Fig. 4 is a kind of external structure schematic diagram of range extender of electric vehicle provided by the embodiment of the utility model；
Fig. 5 is a kind of top view of first end cover provided by the embodiment of the utility model；
Fig. 6 is a kind of schematic diagram of winding bypass connection provided by the utility model；
Fig. 7 is a kind of flow diagram of the control method of range extender of electric vehicle provided by the embodiment of the utility model；
Fig. 8 is the flow diagram of the control method of another range extender of electric vehicle provided by the embodiment of the utility model
Fig. 9 is that a kind of torque-rotation speed relationship of no yoke axial flux permanent magnet motor provided by the embodiment of the utility model is bent
Line chart；
Figure 10 is the flow diagram of another range extender of electric vehicle control method provided by the embodiment of the utility model；
Figure 11 is another torque-rotation speed relationship without yoke axial flux permanent magnet motor provided by the embodiment of the utility model
Curve graph.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
The utility model embodiment provides a kind of range extender of electric vehicle, is that the utility model is implemented with reference to Fig. 1, Fig. 1
A kind of structural schematic diagram for range extender of electric vehicle that example provides, comprising:
Prime mover 11, without yoke axial flux permanent magnet motor 12 and electric machine controller 13；
The crankshaft of prime mover 11 is fixedly connected with the rotor of no yoke axial flux permanent magnet motor 12, for drive without yoke axle to
The rotor of magnetic flow permanent magnet motor 12 rotates；
Rotor magnetic pole and 122 stator winding 121 without yoke axial flux permanent magnet motor 12 are in axially opposing setting, rotor magnetic
Pole 122 and 121 relative rotary motion of stator winding without yoke axial flux permanent magnet motor 12 so as to generate electricity；
Electric machine controller 13 is electrically connected with no yoke axial flux permanent magnet motor 12, on-vehicle battery 14 and driving motor 15 respectively
It connects, charges without yoke axial flux permanent magnet motor 12 to on-vehicle battery 14 for controlling, and/or power to driving motor 15.
Prime mover 11 can be internal combustion engine, and internal combustion engine is by fuel in machine internal-combustion, and the thermal energy released
It is converted directly into the Thermal Motor of power.It can be used in the present embodiment with fuel such as gasoline, diesel oil, methanol, ethyl alcohol, natural gases
For the energy internal combustion engine as prime mover 11.
The power that prime mover 11 generates makes the crank rotation of prime mover 11, is driven by the power output end of crankshaft without yoke
The rotor of axial flux permanent magnet motor 12 rotates, so that the rotor magnetic pole 122 without yoke axial flux permanent magnet motor 12 and no yoke axle
Relative rotary motion is generated to the stator winding 121 of magnetic flow permanent magnet motor 12, so that stator winding 121 generates induced current, nothing
Yoke axial flux permanent magnet motor 12 generates electricity.The control of electric machine controller 13 is without yoke axial flux permanent magnet motor 12 to on-vehicle battery 14
And/or driving motor 15 is powered.Specifically, stator winding 121 is electrically connected with electric machine controller 13, it is used for stator winding 121
The electric current of generation is transmitted to electric machine controller 13, and the electric current that electric machine controller 13 generates stator winding 121 is by three-phase alternating current
Direct current is converted to, and direct current is powered to on-vehicle battery 14.Alternatively, electric machine controller 13 can directly with the drive of electric car
The dynamic connection of motor 15 power supply, so that driving motor 15 drags the wheel movement of electric car.
Prime mover 11 of range extender of electric vehicle can pass through motor control in 14 capacity of on-vehicle battery lower than after given threshold
The starting of device 13 processed drives prime mover 11 to work without yoke axial flux permanent magnet motor 12, and passes through in the power generation revolving speed for reaching setting
No yoke axial flux permanent magnet motor 12 generates electricity, and powers to on-vehicle battery 14 and/or driving motor 15, is able to extend electric car
Course continuation mileage.Under the conditions of identical mileage travelled, range extender of electric vehicle provided in this embodiment makes the vehicle-mounted of electric car
14 electricity of battery is settable smaller, and battery capacity only needs to be the 30%~40% of pure electric automobile, electronic in the present embodiment
Automobile is not required to the on-vehicle battery 14 of matching large capacity, and electric automobile whole cost of manufacture is greatly reduced.
Motor in the present embodiment is no yoke axial flux permanent magnet motor 12, and distance increasing unit is frequently with radial magnetic in the prior art
Three-way motor, generator use inner rotor core, and rotor magnetic pole and stator winding are arranged in radial relative position, and generator is fixed
Son has yoke portion and stator surrounds rotor, causes the volume of generator entirety, weight bigger than normal.And without yoke axial flux permanent magnet electricity
Axial relative position is arranged in rotor magnetic pole 122 and stator winding 121 by machine 12, and motor stator does not have yoke portion, radially, axially
Size is smaller, lighter in weight.
Specifically, Fig. 2 is the knot of a kind of stator winding and rotor magnetic pole provided by the embodiment of the utility model with reference to Fig. 2
Structure schematic diagram.It is provided with stator winding 121 in the groove of each stator core 111, by the magnetic line of force 14 it is found that without yoke axial magnetic flux
Magneto 12 is parallel with no 12 rotation axis X of yoke axial flux permanent magnet motor by the magnetic field of stator winding 121, i.e., magnetic field is axis
To magnetic field.When rotor magnetic pole 122 rotates, 121 cutting magnetic line 14 of stator winding generates electromotive force and then generates current electric power generation.
Optionally, electric machine controller 13 includes the first control panel；First control panel has starting state and generating state two
A working condition；The starting state of first control panel is in motoring condition without yoke axial flux permanent magnet motor 12 for controlling；The
The generating state of one control panel is in generating state without yoke axial flux permanent magnet motor 12 for controlling.
No yoke axial flux permanent magnet motor 12 can be used as starting power generation integrated motor (integrated Starter&
Generator, ISG), when prime mover 11 is started by zero speed, drive prime mover 11 to start as motor；And in prime mover
After 11 reach the power generation revolving speed of setting, rotation is used as generator under the drive of prime mover 11.Optionally, electric machine controller 13 is
The first control panel for ISG electric machine controller, electric machine controller 13 has starting state and generating state；Starting state is for controlling
System is in motoring condition without yoke axial flux permanent magnet motor 12；Generating state is for controlling at without yoke axial flux permanent magnet motor 12
In generating state.
In the utility model embodiment, range extender of electric vehicle will be sent out without yoke axial flux permanent magnet motor as generator
Electricity, the power output end of prime mover crankshaft drives the rotor rotation without yoke axial flux permanent magnet motor, so that without yoke axial magnetic flux
The rotor magnetic pole and stator winding relative rotary motion of magneto, no yoke axial flux permanent magnet electric power generation；In motor control
Under the control of device, no yoke axial flux permanent magnet motor is powered to on-vehicle battery and/or driving motor 15, to increase electric car
Cruise duration.It is identical without yoke axial flux permanent magnet motor relative to the common radial flux motors of existing range extender of electric vehicle
The volume or weight without yoke axial flux permanent magnet motor than radial flux motors of power grade reduces half or more.For
For range extender of electric vehicle, significantly reduced weight and volume is significant to vehicle lightweight, range extender of electric vehicle section
The vehicle space of province is arranged convenient for the other function of electric car.
On the basis of the above embodiments, with reference to Fig. 3, Fig. 3 be a kind of no yoke axle provided by the embodiment of the utility model to
The structural schematic diagram of magnetic flow permanent magnet motor, no yoke axial flux permanent magnet motor 12 can be disc type electric machine, including axially opposed
The first end cover 123 and second end cover 124 of setting；The side opposite with second end cover 124 of first end cover 123 is fixed at least one
Phase stator winding 121, the side opposite with first end cover 123 of second end cover 124 are correspondingly arranged on rotor magnetic pole 122.
Without the small in size, light-weight of yoke axial magnetic flux disc type electric machine, be conducive to the complete vehicle weight for mitigating electric car.Second
124 side of end cap is provided with the shaft 125 being fixedly connected with rotor magnetic pole 122, can be with the power of prime mover crankshaft in shaft 125
Output end is bolted to connection, so that can establish machinery by crankshaft and prime mover 11 without yoke axial flux permanent magnet motor 12
Connection.Stator winding 121 is arranged around stator yoke 111, to enhance the intensity that stator winding 121 generates electromotive force.With reference to figure
4, Fig. 4 be a kind of external structure schematic diagram of range extender of electric vehicle provided by the embodiment of the utility model, and prime mover 11 passes through
Crankshaft is electrically connected with the shaft 125 of the second end cover 124 of no yoke axial flux permanent magnet motor 12, so that prime mover 11 drives without yoke
Axial flux permanent magnet motor 12 is run.
Optionally, the every phase stator winding 121 of no yoke axial flux permanent magnet motor may include at least two winding branches；Nothing
Yoke axial flux permanent magnet motor 12 further includes at least one switching device, at least one switching device is set to first end cover 123
Side far from second end cover 124；At least one switching device passes through at least one perforation and at least two in first end cover 123
Winding branch electrical connection, for the serial or parallel connection by open and close at least two winding branches of realization.
With continued reference to Fig. 3, the side of the close second end cover 124 of first end cover 123 is provided with stator winding 121, and first
End cap 123 is provided with additional end cap 126 far from the side of second end cover 124, is provided at least one switch in additional end cap 126
Device, at least one switching device are arranged close to first end 123, and by least one perforation in first end cover 123 with
At least two winding branch electrical connections.It is a kind of vertical view of first end cover provided by the embodiment of the utility model with reference to Fig. 5, Fig. 5
Figure.First end cover 123 is provided at least one perforation 127 for connecting winding branch and switching device, winding branch and switch
The connecting line of device can be arranged in a one-to-one correspondence with perforation 127, and multiple connecting lines can also be made to be pierced by by same perforation 127.
Optionally, electric machine controller 13 further includes the second control panel；Second control panel is electrically connected at least one switching device
It connects, for controlling the open and close of at least one switching device.
It optionally, is a kind of schematic diagram of winding bypass connection provided by the utility model, every phase with reference to Fig. 6, Fig. 6
Stator winding includes two winding branches: the first winding branch L1 and the second winding branch L2；Without yoke axial flux permanent magnet motor
Including three switching devices: first switch device K1, second switch device K2 and third switching device K3；The first winding branch
The first end 1-1 on road is electrically connected with the first end K1-1 of the first switch device K1, and second end 1-2 is opened with described second respectively
Close the first end K3-1 electrical connection of the first end K2-1 and the third switch K3 of device K2；The first of the second winding branch
Second end K3-2 of the 2-1 respectively with the second end K1-2 of the first switch device K1 and the third switching device K3 is held to be electrically connected
It connects, second end 2-2 is electrically connected with the second end K2-2 of the second switch device K2.
When the revolving speed of no yoke axial flux permanent magnet motor 12 is greater than or equal to Rated motor revolving speed, electric machine controller 13
Second control panel controls first switch device K1 and third switching device K3 and is closed, and second switch device K2 is disconnected, the first winding
Branch L1 and the second winding branch L2 are in parallel；When the revolving speed of no yoke axial flux permanent magnet motor 12 is less than Rated motor revolving speed,
The second control panel control first switch device K1 and third switching device K3 of electric machine controller 13 is disconnected, second switch device K2
Closure, the first winding branch L1 and the second winding branch L2 series connection.Above-mentioned control process makes opening in range extender of electric vehicle
Dynamic initial time, the first winding branch L1 and the second winding branch L2 series connection, no yoke axial flux permanent magnet motor 12 have enough
Big torque, prime mover 11 can overcome rapidly the resistance of piston component and crankshaft to rotate.And because the first winding branch L1
With the second concatenated structure of winding branch L2, the electric current that starting moment generates without yoke axial flux permanent magnet motor 12 is smaller, reduces
Energy consumption to on-vehicle battery 14.And the revolving speed in no yoke axial flux permanent magnet motor 12 is stepped up more than Rated motor revolving speed
When, control the first winding branch L1 and the second winding branch L2 is connected in parallel, and no yoke axial flux permanent magnet motor 12 generates anti-
Electromotive force becomes 50% when the first winding branch L1 and the second winding branch L2 is connected in series, and does not need the control by weak magnetic
Method promotes the revolving speed without yoke axial flux permanent magnet motor 12, thus do not have weak magnetoelectricity stream without yoke axial flux permanent magnet motor 12,
Improve the working efficiency without yoke axial flux permanent magnet motor 12.
Optionally, switching device is threephase switch device or single-phase switch device.It is fixed that threephase switch can control three-phase simultaneously
The connection of the corresponding winding branch of each phase stator winding 121 in sub- winding 121, for example, the first threephase switch device K1 controllable three
In phase stator winding 121 in every phase stator winding 121 the first end 1-1 of first winding branch L1 and the second winding branch L2
The electrical connection of one end 2-1.When the switching device being then arranged is threephase switch device, 121 settable 3 three-phases of threephase stator winding
Switching device；If the switching device being arranged is single-phase switch device, 3 single-phase switch devices of every needs of phase stator winding 121, three
Phase stator winding 121 needs 9 single-phase switch devices.
Optionally, threephase switch device is three-phase ac contactor, three-phase solid relay or three-phase dc relay；
Single-phase switch device is single-phase DC relay, single-phase solid relay or insulated gate bipolar transistor.
Based on same design, the utility model embodiment also provides a kind of control method of range extender of electric vehicle.Fig. 7 is
The flow diagram of the control method of a kind of range extender of electric vehicle provided by the embodiment of the utility model, as shown in fig. 7, this reality
The method for applying example includes the following steps:
S110, prime mover are driven by crankshaft and are rotated without yoke axial flux permanent magnet rotor.
S120, the rotor magnetic pole without yoke axial flux permanent magnet motor and stator winding relative rotary motion so that without yoke axle to
Magnetic flow permanent magnet electric power generation.
S130, electric machine controller control without yoke axial flux permanent magnet motor to charging on-vehicle battery, and/or to driving motor
Power supply.
In the utility model, the control method of range extender of electric vehicle will be without yoke axial flux permanent magnet motor as generator
Power generation, the power output end of prime mover crankshaft drives the rotor rotation without yoke axial flux permanent magnet motor, so that without yoke axial magnetic
The rotor magnetic pole and stator winding relative rotary motion of logical magneto, no yoke axial flux permanent magnet electric power generation；And in motor
Under the control of controller, no yoke axial flux permanent magnet motor is powered to charging on-vehicle battery and/or directly to driving motor, thus
The electric energy reserves for increasing electric car, increase the cruise duration of electric car.Without yoke axial flux permanent magnet motor relative to existing electricity
The common radial flux motors of electrical automobile distance increasing unit, equal-wattage grade without yoke axial flux permanent magnet motor than radial flux electricity
The volume or weight of machine reduces half or more, for range extender of electric vehicle, significantly reduced weight and volume pair
Vehicle lightweight is significant, and the arrangement of electric car is convenient in the space that range extender of electric vehicle is saved.
On the basis of the above embodiments, the utility model embodiment provides the control of another range extender of electric vehicle
Method, electric machine controller may include the first control panel；First control panel has two work shapes of starting state and generating state
State；Prime mover is driven by crankshaft and is rotated without yoke axial flux permanent magnet rotor, may include: that the first control panel is in starting
State simultaneously controls and without yoke axial flux permanent magnet motor is in motoring condition, drives prime mover to start by crankshaft；When prime mover
When revolving speed increases to setting power generation revolving speed, the first control panel switches to generating state and controls at without yoke axial flux permanent magnet motor
In generating state, the crankshaft of prime mover drives the rotor rotation without yoke axial flux permanent magnet motor.
Specifically, Fig. 8 is the control of another range extender of electric vehicle provided by the embodiment of the utility model with reference to Fig. 8
The control method of the flow diagram of method, range extender of electric vehicle includes:
S210, on-vehicle battery battery management system detect battery capacity, and it is whole that battery capacity is sent to electric car
Vehicle controller (Vehicle Control Unit, VCU).
Electric car VCU is used for each component of vehicle, for example, prime mover, without yoke axial flux permanent magnet motor, on-vehicle battery
And driving motor etc., carry out overall coordination and control.The battery management system of on-vehicle battery can to cells electricity into
Row detects and is sent to electric car VCU.
S220, electric car VCU monitor battery capacity in real time, judge whether battery capacity is less than setting low battery threshold value,
If so, S230 is executed, if otherwise executing S270.
S230, electric car VCU export the first enabling signal to electric machine controller, the first control panel of electric machine controller with
Starting state work, no yoke axial flux permanent magnet motor drive prime mover to rotate as motor.
S240, when prime mover rotational speed rise to setting power generation revolving speed when, electric machine controller the first control panel switching
It works to generating state, prime mover is driven by crankshaft and rotated without yoke axial flux permanent magnet rotor.
S250, the rotor magnetic pole without yoke axial flux permanent magnet motor and stator winding relative rotary motion so that without yoke axle to
Magnetic flow permanent magnet electric power generation.
S260, electric machine controller control are powered without yoke axial flux permanent magnet motor to on-vehicle battery and/or driving motor, it
After execute 270.
S270, when no yoke axial flux permanent magnet motor is on-vehicle battery power supply, so that the electricity of on-vehicle battery is greater than setting high
When power threshold, entire car controller (VCU) controls on-vehicle battery for driving motor power supply, prime mover and without yoke axial flux permanent magnet
Motor stops working, and continues to execute S220 later.When the electricity of on-vehicle battery is re-lowered to setting low battery threshold value, repeat
Above-mentioned no yoke axial flux permanent magnet motor and prime mover starting, power generation, the process stopped.
Under above-mentioned working condition, the working curve of no yoke axial flux permanent magnet motor is as shown in figure 9, with reference to Fig. 9, Fig. 9
It is a kind of torque-rotation speed graph of relation of no yoke axial flux permanent magnet motor provided by the embodiment of the utility model.Curve L3
It is respectively without yoke axial flux permanent magnet motor in motoring condition or the working curve of generating state with curve L4, in order to improve hair
The rated speed n1 that the power generation revolving speed without yoke axial flux permanent magnet motor is higher than motor is arranged in the power density of motor；Motor turns
Speed exceeds rated speed n1, and field weakening control method can be used in electric machine controller, consumes part electric energy；Without yoke axial flux permanent magnet electricity
Machine drag prime mover revolving speed rise to setting power generation revolving speed a when, be switched to generating state b point.After being switched to generating state b point, by
The working condition when variation of driving motor payload size makes prime mover rotation speed change, at this time without yoke axial flux permanent magnet motor
It will be moved on invariable power curve e '-f ' along the several points of b, c, d.In the present embodiment, no yoke axial flux permanent magnet motor is most
Big stable electric generation power cannot change.
Optionally, no yoke axial flux permanent magnet motor is disc type electric machine, first end cover including axially opposed setting and
Second end cover；The first end cover side opposite with second end cover is fixed with an at least phase stator winding, second end cover and first end
It covers opposite side and is correspondingly arranged on rotor magnetic pole；Every phase stator winding includes at least two winding branches；Without yoke axial magnetic flux
Magneto further includes at least one switching device, at least one switching device is electrically connected at least two winding branches, is used for
The serial or parallel connection of at least two winding branches is realized by open and close；The control method of the range extender of electric vehicle,
Further include: when the revolving speed of the no yoke axial flux permanent magnet motor is less than Rated motor revolving speed, the electric machine controller control
At least one described switching device realizes the series connection of at least two winding branches；When the no yoke axial flux permanent magnet motor
Revolving speed when being equal to or more than Rated motor revolving speed, the electric machine controller controls described at least one described switching device realizes
The parallel connection of at least two winding branches.
On the basis of the above embodiments, the present embodiment additionally provides more specifically range extender of electric vehicle controlling party
Method, with reference to Figure 10, Figure 10 is that the process of another range extender of electric vehicle control method provided by the embodiment of the utility model is shown
It is intended to, the control method of range extender of electric vehicle includes:
The battery management system detection battery capacity of S310, on-vehicle battery, and battery capacity is sent to electric car
VCU。
S320, electric car VCU monitor battery capacity in real time, judge whether battery capacity is less than setting low battery threshold value,
If so, S330 is executed, if otherwise executing S390.
S330, electric car VCU export the first enabling signal to electric machine controller, the first control panel of electric machine controller with
Starting state work, no yoke axial flux permanent magnet motor drive prime mover to rotate as motor.
S340, when the revolving speed of no yoke axial flux permanent magnet motor be less than Rated motor revolving speed when, electric machine controller second control
Making sheet controls the series connection that at least one switching device realizes at least two winding branches.
S350, when the revolving speed of no yoke axial flux permanent magnet motor be equal to or more than rated speed when, electric machine controller second
Control panel controls the parallel connection that at least one switching device realizes at least two winding branches.
In the starting initial time of range extender of electric vehicle, at least two winding branch series connection, no yoke axial flux permanent magnet
Motor 12 has sufficiently large torque, and prime mover 11 can overcome rapidly the resistance of piston component and crankshaft to rotate.And because
At least two winding branch series connection, the electric current that starting moment generates without yoke axial flux permanent magnet motor 12 is smaller, reduces to vehicle-mounted
The energy consumption of battery 14.And when the revolving speed of no yoke axial flux permanent magnet motor 12 is stepped up more than Rated motor revolving speed, control
At least two winding branch circuit parallel connection connections, the counter electromotive force that no yoke axial flux permanent magnet motor 12 generates become 2 winding branches
1/2 when series connection, it does not need to promote the revolving speed without yoke axial flux permanent magnet motor 12 by the control method of weak magnetic, thus
No yoke axial flux permanent magnet motor 12 does not have weak magnetoelectricity stream, improves the working efficiency without yoke axial flux permanent magnet motor 12.
S360, when prime mover rotational speed rise to setting power generation revolving speed when, electric machine controller the first control panel switching
It works to generating state, prime mover is driven by crankshaft and rotated without yoke axial flux permanent magnet rotor.
S370, the rotor magnetic pole without yoke axial flux permanent magnet motor and stator winding relative rotary motion so that without yoke axle to
Magnetic flow permanent magnet electric power generation.
S380, electric machine controller control are powered without yoke axial flux permanent magnet motor to on-vehicle battery and/or driving motor, it
After execute S390.
S390, when no yoke axial flux permanent magnet motor is on-vehicle battery power supply, so that the electricity of on-vehicle battery is greater than setting high
When power threshold, entire car controller (VCU) controls on-vehicle battery for driving motor power supply, prime mover and without yoke axial flux permanent magnet
Motor stops working, and executes S320 later.When the electricity of on-vehicle battery is re-lowered to setting power threshold, above-mentioned nothing is repeated
Yoke axial flux permanent magnet motor and prime mover starting, power generation, the process stopped.
Under above-mentioned working condition, the working curve of no yoke axial flux permanent magnet motor is as shown in figure 11, with reference to Figure 11, figure
11 be another torque-rotation speed graph of relation without yoke axial flux permanent magnet motor provided by the embodiment of the utility model.It is bent
Line L5 and curve L6 is respectively without yoke axial flux permanent magnet motor in motoring condition or the working curve of generating state, in order to mention
The power density of high generator, power generation revolving speed of the setting without yoke axial flux permanent magnet motor are higher than Rated motor revolving speed N1；Motor
Revolving speed exceeds Rated motor revolving speed N1, and control switch device is switched to by electric machine controller by original two winding branches series connection
Two winding branch circuit parallel connections, the part electric energy of consumption weak magnetic control will be not required in this case by generating electricity；Without yoke axial flux permanent magnet
When motor drag prime mover revolving speed rises to setting power generation revolving speed A, it is switched to generating state B point.After being switched to generating state B point,
When making prime mover rotation speed change due to the variation of driving motor payload size, at this time without the power generation work of yoke axial flux permanent magnet motor
Making state will move on permanent torque curve E '-F ' along the several points of B, C, D, and wherein F ' is no yoke axial flux permanent magnet motor
Winding branch connection relationship is by after connecting and being changed to parallel connection, new permanent torque work becomes another turning point of invariable power work.
The maximum stable generated output without yoke axial flux permanent magnet motor in this implementation can change with the increase of revolving speed, and not
Need to carry out weak magnetic control to prevent the counter electromotive force of no yoke axial flux permanent magnet motor from increasing as revolving speed increases, preferably
Meets the needs of electric car is to distance increasing unit changed power.
Distance increasing unit provided by the embodiment of the utility model is equally applicable to ship power generation and the power generation of other mobile devices, with
Enhance ship or the cruising ability of other mobile devices.And distance increasing unit occupy small in size, lighter in weight, convenient for ship or its
The space layout of his mobile device.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (9)
1. a kind of range extender of electric vehicle characterized by comprising prime mover, without yoke axial flux permanent magnet motor and motor
Controller；
The crankshaft of described prime mover is fixedly connected with the rotor of the no yoke axial flux permanent magnet motor, for driving the no yoke
The rotation of axial flux permanent magnet motor rotor；
The rotor magnetic pole and stator winding of the no yoke axial flux permanent magnet motor in axially opposing setting, the rotor magnetic pole with
The stator winding relative rotary motion is so that the no yoke axial flux permanent magnet electric power generation；
The electric machine controller is electrically connected with the no yoke axial flux permanent magnet motor, on-vehicle battery and driving motor respectively, is used
It powers in controlling the no yoke axial flux permanent magnet motor to the charging on-vehicle battery, and/or to driving motor.
2. range extender of electric vehicle according to claim 1, it is characterised in that:
The electric machine controller includes the first control panel；First control panel has starting state and generating state two work
State；
The starting state of first control panel is in motoring condition for controlling the no yoke axial flux permanent magnet motor；It is described
The generating state of first control panel is in generating state for controlling the no yoke axial flux permanent magnet motor.
3. range extender of electric vehicle according to claim 1, it is characterised in that:
The no yoke axial flux permanent magnet motor is disc type electric machine.
4. range extender of electric vehicle according to claim 3, it is characterised in that: the no yoke axial flux permanent magnet motor packet
Include the first end cover and second end cover of axially opposed setting；
The first end cover side opposite with the second end cover is fixed with an at least phase stator winding, the second end cover with
The opposite side of the first end cover is correspondingly arranged on rotor magnetic pole.
5. range extender of electric vehicle according to claim 4, which is characterized in that every phase stator winding include at least two around
Group branch；
The no yoke axial flux permanent magnet motor further includes at least one switching device, at least one described switching device is set to
Side of the first end cover far from second end cover；At least one described switching device passes through at least one in the first end cover
A perforation is electrically connected at least two winding branches, for realizing at least two winding branches by open and close
Serial or parallel connection.
6. range extender of electric vehicle according to claim 5, it is characterised in that:
The electric machine controller further includes the second control panel；Second control panel is electrically connected at least one described switching device
It connects, for controlling the open and close of at least one switching device.
7. range extender of electric vehicle according to claim 5, which is characterized in that every phase stator winding includes two winding branch
Road: the first winding branch and the second winding branch；
The no yoke axial flux permanent magnet motor include at least three switching devices: first switch device, second switch device and
Third switching device；The first end of the first winding branch is electrically connected with the first end of the first switch device, second end
The first end switched respectively with the first end of the second switch device and the third is electrically connected；The second winding branch
First end is electrically connected with the second end of the second end of the first switch device and the third switching device respectively, second end with
The second end of the second switch device is electrically connected.
8. according to the described in any item range extender of electric vehicle of claim 5-7, it is characterised in that:
The switching device is threephase switch device or single-phase switch device.
9. range extender of electric vehicle according to claim 8, it is characterised in that:
The threephase switch device is three-phase ac contactor, three-phase solid relay or three-phase dc relay；
The single-phase switch device is single-phase DC relay, single-phase solid relay or insulated gate bipolar transistor.
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| CN201821735774.9U CN208947105U (en) | 2018-10-25 | 2018-10-25 | A kind of range extender of electric vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109228895A (en) * | 2018-10-25 | 2019-01-18 | 李洪广 | A kind of range extender of electric vehicle and control method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109228895A (en) * | 2018-10-25 | 2019-01-18 | 李洪广 | A kind of range extender of electric vehicle and control method |
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Effective date of registration: 20200629 Address after: Room j1559, 1 / F, 185 Moyu Road, Anting Town, Jiading District, Shanghai 201800 Patentee after: Shanghai Masidi Electric Technology Co., Ltd Address before: 201620, room 114, No. 926, Lane 501, new Songjiang Road, Shanghai, Songjiang District Patentee before: Li Hongguang |